CN106448979A - Sealed dustproof potentiometer - Google Patents
Sealed dustproof potentiometer Download PDFInfo
- Publication number
- CN106448979A CN106448979A CN201610752962.1A CN201610752962A CN106448979A CN 106448979 A CN106448979 A CN 106448979A CN 201610752962 A CN201610752962 A CN 201610752962A CN 106448979 A CN106448979 A CN 106448979A
- Authority
- CN
- China
- Prior art keywords
- potentiometer
- dust
- proof
- sliding contact
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
The invention discloses a sealed dustproof potentiometer, which comprises a shell and a potentiometer main body arranged in the shell, wherein a cylindrical closed structure is adopted by the shell and a shaft sleeve is arranged at the top of the shell; a plurality of annular seal grooves and a plurality of annular dustproof grooves are arranged in the inner wall of the shaft sleeve separately; one matched annular seal ring is arranged in each seal groove; and one matched annular dustproof ring is arranged in each dustproof groove. According to the sealed dustproof potentiometer disclosed by the invention, the maximum value of a resistor is effectively improved through setting the resistor into a broken line structure; different precisions of the potentiometer can be set according to the bending quantity and degree of the resistor and the use convenience is improved through connecting a sliding contact and bending parts of the resistor; and double protection is carried out by using the seal rings and the dustproof rings, the sealing property is good and external dust and moisture can be effectively prevented from entering the inside of the potentiometer.
Description
Technical field
The invention belongs to potentiometer technical field, the dust-proof potentiometer of more particularly, to a kind of closed type.
Background technology
Potentiometer be have three exits, resistance can by certain Changing Pattern adjust resistive element.Potentiometer is usual
It is made up of resistive element and moveable brush.Current potentiometer is the element being covered by a case in potentiometer mostly, leads to
Cross the rotating bar stretching in case potentiometer is adjusted, but existing rotational potentiometer poor sealing performance, sealant expansion
Poor performance, leads to dust, steam etc. to enter inside potentiometer, can reduce the service life of potentiometer.
Content of the invention
The goal of the invention of the present invention is：In order to solve problem above present in prior art, the present invention proposes one kind
The dust-proof potentiometer of closed type.
The technical scheme is that：A kind of dust-proof potentiometer of closed type, including housing and be arranged on the current potential in housing
Device main body；Described housing adopts cylindrical enclosed construction, and its top is provided with axle sleeve；Described sleeve lining is respectively arranged with multiple
Annular seal grooves and multiple annular dust-proof groove, are provided with the O-ring seal matching in described sealed groove, described anti-
It is provided with the annular dust ring matching in dirt groove；Described potentiometer main body includes the carrier board being loaded with resistance, described carrier
Plate is patty, and it is arranged on above-mentioned housing bottom；Described resistance is fold-line-shaped circular ring structure, and it is arranged on described carrier board
Surface；It is additionally provided with sliding contact, described sliding contact one end is fixed on described load by contact support on described carrier board
Ti Ban center, the other end is slidably connected with described resistance；The fixing end of described sliding contact is also connected with rotating bar, described rotation
Bar passes through described upper shell top axle sleeve and is arranged on described casing center axis；Described rotating bar includes metal inside and stone
Black outer layer.
Further, described contact support upper surface is provided with the locating piece of multiple projections, described cunning along ring-shaped periphery
Movable contact lower surface is provided with the corresponding locating slot of multiple and described locating piece.
Further, described sealing ring medial surface indention.
Further, the metal inside of described rotating bar and non-graphite outer layers are by gluing connection.
The invention has the beneficial effects as follows：The dust-proof potentiometer of closed type of the present invention is by being set to fold-line-shaped knot by resistance
Structure, increase effectively the maximum of resistance, and is connected with the bending part of resistance by sliding contact, can be curved according to resistance
Broken number amount and the different accuracy of degree setting potentiometer, improve the convenience of use；Sealing ring and dust ring is recycled to carry out
Double protection, good seal performance, can effectively prevent external dust, dampness from entering inside potentiometer.
Brief description
Fig. 1 is the closed type dust-proof potentiometer schematic cross-section of the present invention.
Fig. 2 is the potentiometer main body top view of the present invention.
Wherein, housing 1, axle sleeve 1-1, sealing ring 1-2, dust ring 1-3, potentiometer main body 2, carrier board 2-1, resistance 2-2,
Sliding contact 2-3, contact support 2-4, rotating bar 2-5.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the closed type dust-proof potentiometer schematic cross-section for the present invention.A kind of dust-proof potentiometer of closed type,
Including housing 1 and be arranged on the potentiometer main body 2 in housing 1；Described housing 1 adopts cylindrical enclosed construction, and its top sets
There is axle sleeve 1-1；Described axle sleeve 1-1 inwall is respectively arranged with multiple annular seal grooves and multiple annular dust-proof groove, described close
It is provided with, in envelope groove, the O-ring seal 1-2 matching, in described dust-proof groove, be provided with the annular dust ring 1- matching
3；Described potentiometer main body 2 includes the carrier board 2-1 being loaded with resistance 2-2, and described carrier board 2-1 is patty, and it is arranged on
State housing 1 bottom；Described resistance 2-2 is fold-line-shaped circular ring structure, and it is arranged on described carrier board 2-1 upper surface；Described carrier
Sliding contact 2-3 is additionally provided with plate 2-1, described sliding contact 2-3 one end is fixed on described carrier by contact support 2-4
Plate 2-1 center, the other end is slidably connected with described resistance 2-2；The fixing end of described sliding contact 2-3 is also with rotating bar 2-5 even
Connect, described rotating bar 2-5 passes through described upper shell 1-1 top axle sleeve 1-3 and is arranged on described housing 1 central axis；Described
Rotating bar 2-5 includes metal inside and non-graphite outer layers.
, by gluing connection, non-graphite outer layers are soft graphite for the metal inside of rotating bar 2-5 of the present invention and non-graphite outer layers,
There is chemical stability, the anti-erosion of native graphite, outside the characteristic such as lubricity is good, also there is special flexibility and elasticity, have one
Fixed sealing property.The sealing ring 1-2 of the present invention adopts expanded graphite, and this graphite is except having the chemically stable of native graphite
Property, outside the characteristic such as anti-erosion, also there is special flexibility and elasticity, good airproof performance, lubricity is high；Dust ring 1-3 adopts PTFE
Dust ring.
As shown in Fig. 2 potentiometer main body 2 top view for the present invention.The resistance 2-2 of the potentiometer main body 2 of the present invention is
Fold-line-shaped circular ring structure, its lines is uniformly or non-uniformly bar shaped, in the side near the carrier board 2-1 center of circle, its kink
Divide and be slidably connected with sliding contact 2-3, the different essences of potentiometer can be set by the bending quantity and degree arranging resistance 2-2
Degree.So that sliding contact 2-3 is more reliable and more stable in sliding process, the present invention is on contact support 2-4 upper surface edge
Ring-shaped periphery is provided with the locating piece of multiple projections, sliding contact 2-3 lower surface is provided with multiple and described locating piece corresponding
Locating slot, locating piece here and locating slot are all and the resistance 2-2 bending part that is connected with sliding contact 2-3 and carrier board 2-
1 center of circle on the same line, thus ensure that the stability when being connected for the sliding contact 2-3 with resistance 2-2 bending part.This
Bright by rotate rotating bar 2-5 drive sliding contact 2-3 rotate on contact support 2-4, when sliding contact 2-3 with resistance
Using the locating piece of contact support 2-4 upper surface and the locating slot button of sliding contact 2-3 lower surface when 2-2 bending part connects
Close and fix, convenient to use, stability is high.
Those of ordinary skill in the art will be appreciated that, embodiment described here is to aid in reader and understands this
Bright principle is it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.This area
Those of ordinary skill can make various other each without departing from present invention essence according to these technology disclosed by the invention enlightenment
Plant concrete deformation and combine, these deform and combine still within the scope of the present invention.
Claims (4)
1. a kind of dust-proof potentiometer of closed type is it is characterised in that including housing and being arranged on the potentiometer main body in housing；Described
Housing adopts cylindrical enclosed construction, and its top is provided with axle sleeve；It is recessed that described sleeve lining is respectively arranged with multiple ring packings
Groove and multiple annular dust-proof groove, are provided with the O-ring seal matching, set in described dust-proof groove in described sealed groove
It is equipped with the annular dust ring matching；Described potentiometer main body includes the carrier board being loaded with resistance, and described carrier board is patty,
It is arranged on above-mentioned housing bottom；Described resistance is fold-line-shaped circular ring structure, and it is arranged on described carrier board upper surface；Described load
It is additionally provided with sliding contact, described sliding contact one end is fixed on described carrier board center by contact support, separately on body plate
One end is slidably connected with described resistance；The fixing end of described sliding contact is also connected with rotating bar, and described rotating bar passes through described
Upper shell top axle sleeve is simultaneously arranged on described casing center axis；Described rotating bar includes metal inside and non-graphite outer layers.
2. the dust-proof potentiometer of closed type as claimed in claim 1 is it is characterised in that described contact support upper surface is along annular
Side face is provided with the locating piece of multiple projections, and described sliding contact lower surface is provided with the corresponding positioning of multiple and described locating piece
Groove.
3. the dust-proof potentiometer of closed type as claimed in claim 2 is it is characterised in that described sealing ring medial surface indention.
4. the dust-proof potentiometer of closed type as claimed in claim 3 is it is characterised in that the metal inside of described rotating bar and graphite
Outer layer is by gluing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752962.1A CN106448979A (en) | 2016-08-29 | 2016-08-29 | Sealed dustproof potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752962.1A CN106448979A (en) | 2016-08-29 | 2016-08-29 | Sealed dustproof potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448979A true CN106448979A (en) | 2017-02-22 |
Family
ID=58090034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752962.1A Pending CN106448979A (en) | 2016-08-29 | 2016-08-29 | Sealed dustproof potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448979A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146322A (en) * | 1976-04-08 | 1979-03-27 | Canon Kabushiki Kaisha | Variable resistance |
| JP2005072300A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Variable resistor |
| CN103971873A (en) * | 2014-05-29 | 2014-08-06 | 昆山福烨电子有限公司 | Potentiometer |
| CN105810375A (en) * | 2016-05-25 | 2016-07-27 | 常州市武进凯利达电子有限公司 | Sealing dustproof potentiometer |
-
2016
- 2016-08-29 CN CN201610752962.1A patent/CN106448979A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146322A (en) * | 1976-04-08 | 1979-03-27 | Canon Kabushiki Kaisha | Variable resistance |
| JP2005072300A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Variable resistor |
| CN103971873A (en) * | 2014-05-29 | 2014-08-06 | 昆山福烨电子有限公司 | Potentiometer |
| CN105810375A (en) * | 2016-05-25 | 2016-07-27 | 常州市武进凯利达电子有限公司 | Sealing dustproof potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |